CVE-2021-31820

mediumpriority · track · 30OT risk · elevatedEPSS 0.006 · 49 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.61% (49th) EPSS

CVSS 5 · medium

Is it mine?

7 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

In Octopus Server after version 2018.8.2 if the Octopus Server Web Request Proxy is configured with authentication, the password is shown in plaintext in the UI.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-312USprimary

affected products (7)

Products and version ranges known to be affected.

Octopus Deploy Octopus Server2018.8.2 → unspecifiedenisa_euvdEU
Octopus Deploy Octopus Server2021.1.7149 → unspecifiedenisa_euvdEU
Octopus Deploy Octopus Serverunspecified → 2020.6.5310enisa_euvdEU
Octopus Deploy Octopus Serverunspecified → 2021.1.7622enisa_euvdEU
octopus octopus server< 2020.6.5310nvdUScpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*
octopus octopus server2018.8.2 → 2020.6.5310nvdUScpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*
octopus octopus server2021.1.0 → 2021.1.7622nvdUScpe:2.3:a:octopus:octopus_server:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-08-18modified 2026-06-17

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+1238 more

references (3)

External citations — patches, advisories, analysis.

scry

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